Assigatoe to



(No Model.)

G. F. HUTOHINS.

STOP MOTION FOR LOOMS.

No. 357,712. Patented Feb. 15., 1887.

UNITED S'ra'rns Parent FFICEo GEORGE E. HUTOHINS, OF \VORCESTER,MASSACHUSETTS, ASSIGNOR TO THE KNOWLES LOOM VORKS, OE SAME PLACE.

STOPHVIOTEON roe toot/is.

SPECIFICATION forming part of Letters Patent No. 357,712, dated February15, 1887.

Application filed hiay 24, 1886. Serial No. 203,059. (No model.)

To aZZ whom it may concern:

Be it known that I, GEORGE F. HUrcHINs, a citizen of the United States,residing at iVorcester, in the county of Worcester and State ofMassachusetts, have invented a certain new and Improved Stop-Motion forLooms; and I do hereby declare that the following is a full, clear, andexact description thereof, which, in connection with the drawings makinga part of this specification; will enable others skilled in the art towhich my invention belongs to make and use the same.

My invention relates to looms and to an attachment or mechanism to beapplied thereto, which is designed to act upon the Shipping mechanismand stop the loom when it would not be stopped by the usual protectingmechanism of well-known construction and operation, and by means ofwhich usual protecting mechanism the loom is stopped in case a shuttlefails to enter its receiving-box a sufficient distance to throw off saidprotecting mechanism. In case the shuttle enters the box asufficientdistance to throw off the usual protecting mechanism and prevent theloom from being stopped as the lay beats up, but not a suiiicientdistance to prevent its end from project ing over the race-plate, so asto prevent the loom from operating in a proper manner, then the loomwill be stopped by means of my attachment or mechanism, connected withthe shipping mechanism, in the manner to be hereinafter described.

In the operation of looms it frequently hap pens that ashuttle stops insuch aposition that while it has entered the box far enough to throw theordinary protecting mechanism out of action, so that the loom willcontinue to run, it still projects over the race-plate and under thehand-rail of the lay, so that it prevents the box from being dropped atall, and also prevents the box from being raised any higher than thepoint at which the projecting end of the shuttle will strike thehand-rail. Therefore, if it be attempted to lower the box in order topresent an empty compartment to receive a second shuttle following theone above referred to, the said projecting shuttle will prevent the boxfrom being lowered, as previously stated, the projecting end extendingover the end of the race-plate, and the sec ond shuttle will smash intothe first one and be stopped on the race-plate, where it will eventuallycanse a breakage of the warpthreads in spite of the ordinary protectingmechanism. This same thing is also liable to occur in case of the boxbeing raised instead of lowered with a shuttle projecting out, as abovedescribed, for if the box is stopped by the projecting shuttle strikingthe hand-rail while the compartment in line with the lay has a shuttlein it, this shuttle will stop the second shuttle on the race-plate, withthe same result above mentioned.

My invention consists of an attachment to be applied to looms, andlocated at each end of the loom, just inside of the shuttle-boxes, withits end projecting out so that it will extend over the race-plate as thelay beats up and come in contact with a shuttle, which, though havingentered its receivingbox a sufficient distance to throw off the usualprotecting mechanism and prevent the loom from being stopped, still hasits end projecting out so far as to prevent the loom from being properlyoperated.

My device is connected, either directly or through intermediatemechanism, with any usual and wellknown form of shipping mechanism forstopping the loom. The projecting end of the shuttle striking against mydevice as the lay heats up operates the same and causes the shippingmechanism to be operated and the loom to be stopped, in the manner to behereinafter described.

I have shown in the drawings a detached portion of a well-known form ofdrop-box loom with my invention applied thereto, and suliicientlyillustrated to enable those skilled in the art to which my inventionbelongs to understand the construction and operation thereof.

Figure 1 is a vertical cross-section of a portion of a drop-box loom,taken on line X X, Fig. 2, looking in the direction of arrow a, samefigure, showing my attachment or device applied thereto and one way ofconnecting the same with the usual shipping mechanism employed forstopping the loom. The full lines represent the position of the severalparts of the mechanism when the loom is in operation, and the dottedlines their position when the loom is stopped. Fig. 2 is a plan view ofthe end of the loom shown in section in Fig. 1; and Fig. 3 is a frontview of one end of the breast-beam detached, looking in the direction ofarrow 6, Figs. 1 and 2.

As the manner of construction and mode of operation of the ordinaryprotecting mechanism (shown in the drawings) for stopping the loom iswell known and forms no part of my present invention, it is notnecessary to describe the same.

My attachment consists of a slide, A, supported and adapted to move backand forth in a guide-piece, B, which is in this instance secured uponthe top side of the breast-beam 1?, near the end thereof. The slide A islocated at each end, ofwthe, loom, having its inner end, A, projectingout from the breast-beam, so that it will extend over the race-plate Was the lay T heats up just inside of the shuttlebox It, or at the mouthof said shuttle-box. (See Fig. 2.) The end A of the slide A is in thisinstance bent upward and backward, to allow the end of shuttle Q tostrike against it as the lay beats up in case said shuttle extends outfrom its receiving box a sufficient distance to prevent the loom fromoperating in a proper manner. The upward-projecting end A also preventsthe filling from catching.

on said slide A.

I have shown in the drawings the outer end, A, of the slide A connectedwith the upper end of a lever, O, in this instance by having a hole inthe end thereof, through which the upper end of said lever projects. Thelever G is supported and swings upon a stud, D, held in a stand, E,which is secured upon the front side of the breast-beam 1?. (See Fig.3.) Said lever O has a short arm, 0, which projects out at its lowerend, and is adapted to engage the arm F,secured upon the shipper-shaftG, when the loom is in operation. The end of the arm F, pressing uponthe arm 0 of the lever 0, holds the lever O in an upright position, andalso the slide A in its forward position, as shown by full lines, Fig.1.

When the loom is not in operation, the driving mechanism being shipped,the arm F will not be in contact with the arm 0, but will be in theposition shown by dotted lines, Fig. -1, and a spiral spring, S, in thisinstance secured at one end to the lever O and at the other to the studD, will hold the lever back in the position shown by dotted lines, Fig.1, and also the slide A, so that the end A of the slide will be awayfrom the shuttle-boxes and not interfere with the free access to thesame when the loom is not in operation.

Any equivalent means for retaining or holding the slide Ain its backwardposition when the loom is not in operation may be made use of in lieu ofthe spring S.

It is not essential for the proper operation of my device that thereshould be any means for holding the slide A in its backward position,for this can be done by the attendant when necessary; and in case theslide is connected directly with the shipping mechanism it will serve tohold the slide in its backward position when the loom is not inoperation and in its forward position when the loom is in operation.

It will be understood that when the handle V is drawn back to start upthe loom the shipper-shaft G, upon which the arm F is secured, will berevolved in the usual Way, causing the arm F to be drawn down and topress against the lower arm, 0, of the lever G, drawing said lever intothe position shown by full lines, Fig. 1, and also moving forward theslide A against the action of the spring S,

and holding it with its end A projecting out over the race-plate as thelay heats up until it is forced back by the projecting end of theshuttle coming in contact with it, or the loom is otherwise stopped.

The shipper-shaft G, located under the breast-beam and connected withmechanism for shipping the driving-power and stopping the loom, may beof any usual and well-known construction, as the same forms no part ofmy invention, which relates only to the device or attachment to beapplied to the loom at each end of the breast-beam and to be acted uponby the shuttle, as above specified, and connected with any wellknownform of mechanism for stopping the loom.

D The operation of my attachment or device will be readily understood bythose skilled in the art from the above description, in connection withthe drawings, and is as follows:

\Vhen a shuttle, Q, stops in a position similar to that shown in Fig. 2,having entered the shuttle-box R far enough to throw off the ordinaryprotecting mechanism, as shown in Fig. 1, and prevent the loom frombeing stopped, said shuttle will, when the lay beats up, strike the endA of the slide Aand push said slide backward, causing the lever O toswing on the stud D and the arm 0 to turn or revolve the shipper-arm Gby raising the arm F, secured thereon, and the loom to be stopped bymeans of the shipping mechanism shown in the drawings, which is of theusual construction, to be operated by the ordinary protecting mechanism.

The shipper-arm H, secured on the shippershaft G, being turned a shortdistance in the direction of the arrow I, (see Fig. 1,) will cease tohold the lock-lever J in its position, and the spring K on theshipper-rod L, being allowed to act, will, by means of the shipper M,throw the belt from the tight pulley N onto the loose pulley In lieu ofthe mechanism above described for shipping the belt and stopping theloom, any other equivalent mechanism or means may be employed, operatedby my attachment or mechanism.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination, with the loom-frame and lay, of a slide having itsend projecting IIO out to extend over the race-plate at the inner end ofa shuttlebox as the lay beats up,abe1tshipping mechanism, a leverarranged to be operated by said slide, arock-shaft having an arm toengage said lever, and connections between said rock-shaft and thebelt-shipping mechanism, substantially as set forth.

2. The combination, with the breastbeam, the belt-shipping devices, andthe lay, of the slide A, supported by said beam and having the extensionA, the lever O, the shipper rock-shaft G, having arm F to engage thesaid lever, and also the arm H, and the lock-lever shaft G, shipper-armH, lock-lever J, shipperrod L, spring K, and shipper M, substantially 20as shown and described.

GEORGE F. HUTCHINS.

-Witnesses:

JOHN G. DEWEY, FRED. W. SMITH.

